If `vec a` is a unit vector and `(vec x - vec a).(vec x + vec a)=8`, then find `|vec x|`
457 views · Published 11 October 2018 · 2:42 · Indexed 2 October 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW If `vec a` is a unit vector and `(vec x - vec a).(vec x + vec a)=8`, then find `|vec x|`
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